第一遍框架完成，接下来可以完成具体功能和性能优化

Author: ishotoli

src/main/java/io/mycat/IntTokenHash.java

@@ -0,0 +1,39 @@
+package io.mycat;
+
+/**
+ * Created by Fanfan on 2017/3/4.
+ */
+public class IntTokenHash {
+    public static final int FROM = 0x992e0004;
+    public static final int JOIN = 0xf9700004;
+    public static final int UPDATE = 0x62840006;
+    public static final int USE = 0xf840003;
+    public static final int DELETE = 0x33e50006;
+    public static final int DROP = 0xba5d0004;
+    public static final int SELECT = 0x2a10006;
+    public static final int SHOW = 0xb0300004;
+    public static final int INSERT = 0xa3b10006;
+    public static final int INTO = 0xb2e70004;
+    public static final int LOCK = 0xed330004;
+    public static final int LIMIT = 0x450a0005;
+    public static final int ALTER = 0xb2db0005;
+    public static final int CREATE = 0xdde00006;
+    public static final int REPLACE = 0xa88c0007;
+    public static final int TABLE = 0x3780005;
+    public static final int TRUNCATE = 0xcb5d0008;
+    public static final int DELAYED = 0x56380007;
+    public static final int LOW_PRIORITY = 0xb805000c;
+    public static final int HIGH_PRIORITY = 0x7c6f000d;
+    public static final int IGNORE = 0x6c360006;
+    public static final int AS = 0x46580002;
+    public static final int IF = 0x47650002;
+    public static final int NOT = 0x68b00003;
+    public static final int EXISTS = 0x2ed70006;
+    public static final int BALANCE = 0x8d070007;
+    public static final int SQL = 0x53820003;
+    public static final int MYCAT = 0xdce50005;
+    public static final int DB_TYPE = 0xac610007;
+    public static final int SCHEMA = 0xc490006;
+    public static final int DATANODE = 0x45d0008;
+    public static final int CATLET = 0xda600006;
+}

src/main/java/io/mycat/MatchMethodGenerator.java

@@ -198,6 +198,15 @@ static long genHash(char[] str) {
         return hash;
     }
 
+    //JSHash
+    static int genHash2(char[] str) {
+        int hash = 1315423911;
+        for(char c: str) {
+            hash ^= ((hash<<5)+shrinkCharTbl[c-'$']+(hash>>2));
+        }
+        return hash;
+    }
+
     static boolean cmp(char[] str1, char[] str2) {
         if (str1.length == str2.length) {
             for (int i=0; i< str1.length; i++) {
@@ -328,8 +337,8 @@ static void skipXXXTokenGenerator() {
     static void GenerateSqlTokenHash() {
         initShrinkCharTbl();
         try {
-            Files.lines(Paths.get("sql_tokens.txt")).forEach(x -> {
-                System.out.format("    public static final long %s = 0x%xL;%n", x, genHash(x.toCharArray()));
+            Files.lines(Paths.get("minimal_sql_tokens.txt")).forEach(x -> {
+                System.out.format("    public static final int %s = 0x%x%04x;%n", x, genHash2(x.toCharArray()) & 0xFFFF, x.length());
             });
 //            System.out.println("conflict count : "+count);
         } catch (IOException e) {